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3 years ago

Can someone help me with this geometry question.

Mathematics

1 answer:

Feliz [49]3 years ago

3 0

Because this is 4 sided, it is 360°(in total)

The shape is parallel on 2 sides(shown by the red arrows), so (5x)° = 90°

5x = 90

x = 18°

You can add all the angles together and set it equal to 360°

90° + (5x)° + (5(y+11))° + (4y-10)° = 360°

Since you know 5x is 90°, you can plug it in

90° + 90° + (5(y+11))° + (4y-10)° = 360°

180° + (5(y+11))° + (4y-10)° = 360° Subtract 180° on both sides

(5(y+11))° + (4y-10)° = 180°

5y + 55° + 4y - 10° = 180°

9y + 45° = 180°

9y = 135°

y = 15°

x = 18°, y = 15°

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3 years ago

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3 0

3 years ago

4/5 minus 1/3 plz i need help

IRISSAK [1]

Answer:

7/15

Step-by-step explanation:

Step 1

We can't subtract two fractions with different denominators. So you need to get a common denominator. To do this, you'll multiply the denominators times each other... but the numerators have to change, too. They get multiplied by the other term's denominator.

So we multiply 4 by 3, and get 12.

Then we multiply 1 by 5, and get 5.

Next we give both terms new denominators -- 5 × 3 = 15.

So now our fractions look like this:

−

Step 2

Since our denominators match, we can subtract the numerators.

12 − 5 = 7

So the answer is:

Step 3

Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction?

To find out, we try dividing it by 2...

Nope! So now we try the next greatest prime number, 3...

Nope! So now we try the next greatest prime number, 5...

Nope! So now we try the next greatest prime number, 7...

Nope! So now we try the next greatest prime number, 11...

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3 years ago

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Korvikt [17]

Answer:

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